Publications by authors named "Hiroyuki Otani"

We carefully reviewed and evaluated the efficacy of transurethral water vapor energy therapy (WAVE) with Rezumᵀᴹ system for treatment of benign prostatic hyperplasia. Between April and September 2023, 41 patients received WAVE under local anesthesia as day surgery at the outpatient department in our institution. The mean age as of operation was 78.

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  • The study investigates the frequency and complications of falls in palliative care units (PCUs) for advanced cancer patients and how these relate to independence and quality of dying.
  • Among 1,633 patients observed, 150 (9.2%) experienced falls in the last month of life, primarily due to needing to use the toilet, with serious injuries being very rare.
  • The findings suggest that while falls can be common, they are not necessarily harmful and may reflect a patient's independence, indicating that healthcare providers should balance fall prevention with supporting patient autonomy.
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Introduction: Malignant wounds are lesions caused by metastasis from distant primary cancers or by direct invasion of the cutaneous structures of a primary cancer, and are most common in patients with breast or head and neck cancers. Malignant wounds not only cause physical symptoms, but also affect survival. Recognizing prognosis in terminal-stage cancer patients is necessary for both patients and health care providers.

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  • Advanced cancer patients often experience nutrition impact symptoms (NISs) and depressive moods, which this study aimed to explore.
  • The study analyzed 225 palliative care patients, dividing them into non-depression and depression groups based on their scores from the Patient Health Questionnaire-9 (PHQ-9).
  • Results showed a significant relationship where depression was linked to a higher number and severity of NISs, indicating that having four or more severe NISs is associated with an increased risk of depression.
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  • The study aimed to explore the relationship between patients' unrealistic expectations of chemotherapy as a cure and their understanding of being informed about the incurability of their cancer.
  • Researchers analyzed data from 200 patients with non-small cell lung cancer and found that while most oncologists believed they communicated incurability, many patients did not perceive this disclosure.
  • Patients who maintained unrealistic expectations about chemotherapy were less likely to receive specialized palliative care, indicating a link between understanding their prognosis and the care they received.
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Context: Delirium is a significant concern in end-of-life care. Continuous monitoring of agitation levels using objective methods may have advantages over existing measurement scales.

Objectives: To examine whether an objective measure of activity scores measured using a sheet-type non-wearable sensor (Nemuri SCAN [NSCAN]) was correlated with agitation levels measured using the modified Richmond Agitation-Sedation Scale (RASS) in terminally ill patients with cancer.

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Background & Aims: There is no definition of nutrition impact symptoms (NISs) in cancer care. Moreover, there is a lack of evidence on the associations of NISs with dietary intake and eating-related distress (ERD) in advanced cancer. Therefore, this study aimed to determine the associations of NISs with dietary intake and ERD in patients with advanced cancer.

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Background: This study sought to investigate the symptoms and prognoses of patients with breast cancer and malignant wounds in the palliative care unit setting.

Methods: This study was a sub-group analysis of a multicenter, prospective, observational study. Patients admitted to 23 palliative care units in Japan between January and December 2017 were enrolled.

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  • The study aimed to investigate if low serum creatinine levels in advanced cancer patients are linked to worse outcomes.
  • It analyzed data from 1,617 patients divided by serum creatinine levels, finding that higher levels correlated with shorter survival rates for both males and females.
  • Ultimately, the findings suggested that low serum creatinine levels do not predict poor prognosis in these patients.
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Background: End-of-life discussions for patients with advanced cancer are internationally recommended to ensure consistency of end-of-life care with patients' values. This study examined the elements of end-of-life discussions associated with end-of-life care.

Materials And Methods: We performed a prospective observational study among consecutive patients with pretreated non-small cell lung cancer after the failure of first-line chemotherapy.

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Background: Swallowing disorders including difficulty swallowing and food bolus obstruction, result in reduced dietary intake-a common occurrence that leads to cachexia in patients with advanced cancer. This study examined the effects of swallowing difficulty and food bolus obstruction on cachexia-related quality of life (QOL).

Methods: This study secondarily analyzed data from a self-reported questionnaire survey of adult patients with advanced cancer at 11 palliative care services.

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There is ongoing debate on whether continuous deep sedation (CDS) for psycho-existential suffering is appropriate. We aimed to (1) clarify clinical practice of CDS for psycho-existential suffering and (2) assess its impact on patients' survival. Advanced cancer patients admitted to 23 palliative care units in 2017 were consecutively enrolled.

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Purpose: Taste and smell are used to enjoy meals; however, impairments of these sensory perceptions seriously impact health and eating habits. This study is aimed at investigating the impact of taste and smell disturbances on dietary intakes and cachexia-related quality of life (QOL) in patients with advanced cancer.

Methods: Using a self-report questionnaire, we surveyed patients with advanced cancer undergoing treatment at 11 palliative care centers.

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Background: Eating-related distress (ERD) is one type of psychosocial distress among advanced cancer patients and family caregivers. Its alleviation is a key issue in palliative care; however, there is no validated tool for measuring ERD.

Methods: The purpose of this study was to validate tools for evaluating ERD among patients and family caregivers.

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Background: Although patients with advanced cancer often have poor prognostic awareness, the most effective communication approach for improving prognostic awareness is unclear. In addition, the association between prognostic awareness and preferences for future medical treatment remains unexplored.

Materials And Methods: We performed a prospective observational study of consecutive patients with advanced or post-operative recurrent non-small cell lung cancer whose disease had progressed after first-line chemotherapy, and their caregivers.

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Background: The beliefs and perceptions of parenteral nutrition and hydration (PNH) by advanced cancer patients have not been elucidated.

Objectives: To clarify their beliefs and perceptions and to explore the relationships between their beliefs and perceptions and cachexia stages.

Design/setting/subjects: A questionnaire survey of advanced cancer patients receiving palliative care across Japan.

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Objective: The objective of this survey was to identify areas where doctors have divergent practices in pharmacological treatment for hyperactive delirium in terminally ill patients with cancer.

Methods: We conducted a survey of Japanese palliative care physicians and liaison psychiatrists. Inquiries were made regarding: (i) choice of drug class in the first-line treatment, (ii) administration methods of the first-line antipsychotic treatment, (iii) starting dose of antipsychotics in the first line treatment and maximum dose of antipsychotics in refractory delirium, and (iv) choice of treatment when the first-line haloperidol treatment failed.

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Context: The perspective toward hypoactive delirium in the last days of life could be different among physicians.

Objectives: To clarify the attitudes, beliefs, and opinions of palliative care physicians and liaison psychiatrists toward hypoactive delirium in the last days of life and to explore the association among these factors.

Methods: A nationwide cross-sectional questionnaire survey was conducted among 1667 physicians who were either certified palliative care specialists or liaison psychiatrists.

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Background: Where patients receive end-of-life care influences their quality of life.

Objectives: To clarify the effects of staying in a private or shared room in inpatient hospices.

Design: A part of a Japanese multicentre survey to evaluate the quality of end-of-life care.

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Purpose: Some patients experience intense symptoms refractory to intensive palliative care, and palliative sedation is sometimes used. Palliative sedation may be classified into proportional and continuous deep sedation (CDS). The primary aim of this study was to compare family experience between families of patients who received proportional or CDS.

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During end-of-life care, the place in which the patients spend time influences their quality of life. To clarify what it means to spend last days at home and in inpatient hospice. This study was a part of a nationwide multicenter questionnaire survey of bereaved family members of cancer patients evaluating the quality of end-of-life care in Japan.

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Purpose: To examine the safety, effectiveness, and patient-perceived benefit of treatment with olanzapine for nausea and vomiting (N/V) in patients with advanced cancer.

Methods: We conducted a multicenter prospective observational study in a tertiary care setting (Trial registration number: UMIN000020493, date of registration: 2016/1/12). We measured the following: average nausea in the last 24 h using a Numeric Rating Scale (NRS: range 0-10) at baseline and day 2, patient-perceived treatment benefit (based on a 5-point verbal scale), and adverse events (AEs; using the Common Terminology Criteria for Adverse Events version 4).

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Objectives: The goal of palliative and supportive care is to improve patients' quality of life (QoL). Patient-reported outcome measures (PROMs) are the gold standard for the assessment of QoL and symptoms; however, when self-reporting is complicated, PROMs are often substituted with proxy-reported outcome measures, such as clinician-reported outcome measures. The objective of this study was to assess the validity and reliability of the Japanese version of the Integrated Palliative care Outcome Scale (IPOS) for staff (IPOS-Staff).

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McMurry coupling is one of the most useful and convenient tools for the preparation of π-conjugated molecules. However, for the synthesis of strained macrocycles containing ethynylene linkages, reduction of ethynylene to vinylene linkage sometimes took place. Especially, for the synthesis of macrocyclic π-extended thiophene hexamers using McMurry coupling of dialdehyde composed of three thienylene, two ethynylene, and two formyl groups, reduction of ethynylenes to vinylenes often takes place to produce unique products in a one-pot procedure, depending on very small steric and electronic effects such as reaction temperature, amounts of titanium reagent, and substituents of thiophene hexamers.

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